﻿using System;
using Xpedite.Resources;
using Xpedite.WebAbstraction;

/* Copyright (c) 2010 CBaxter
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), 
 * to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, 
 * and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 
 * IN THE SOFTWARE. 
 */

namespace Xpedite.Extensions
{
  internal static class WebPageExtensions
  {
    private static readonly String ResourceContextPageItemsKey = typeof(IResourceContext).AssemblyQualifiedName;

    public static IResourceContext GetResourceContext(this IWebPage page)
    {
      Verify.NotNull(page, "page");

      var context = page.Items[ResourceContextPageItemsKey] as IResourceContext;

      if (context == null)
        page.Items[ResourceContextPageItemsKey] = context = new ResourceContext(page.Context.GetResourceDefinitionFactory());

      return context;
    }
  }
}
